---
product_id: 81253389
title: "Si Laser Mirror"
brand: "mcwlaser"
price: "€ 89.74"
currency: EUR
in_stock: true
category: "Mc Wlaser"
url: https://www.desertcart.gr/products/81253389-si-laser-mirror
store_origin: GR
region: Greece
---

# >99.8% infrared reflectivity 5-layer durable gold plating 20mm precision diameter Si Laser Mirror

**Brand:** mcwlaser
**Price:** € 89.74
**Availability:** ✅ In Stock

## Summary

> ✨ Reflect your laser’s true potential with MCWlaser precision! 🔥

## Quick Answers

- **What is this?** Si Laser Mirror by mcwlaser
- **How much does it cost?** € 89.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/81253389-si-laser-mirror)

## Best For

- mcwlaser enthusiasts

## Why This Product

- Trusted mcwlaser brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Gold-Plated Durability:** 5-layer coating ensures long-lasting performance under intense heat
- • **Ultra-High Reflectivity:** Maximizes laser efficiency with 99.8% reflectance at 10600nm
- • **Versatile Compatibility:** Ideal for 40-400W CO2 laser engravers including K40 replacements
- • **Oxidation-Proof Packaging:** Vacuum-sealed to maintain pristine mirror quality and longevity
- • **Precision Perfect 20mm Diameter:** Engineered for flawless fit and optimal laser focus

## Overview

The MCWlaser 3PCS 20mm CO2 Laser Mirrors feature gold-plated silicon with a 5-layer coating, delivering over 99.8% reflectivity at 10600nm wavelength. Designed for 40-400W CO2 laser engraving and cutting machines, these mirrors offer exceptional heat resistance, durability, and come vacuum-sealed to prevent oxidation, ensuring peak performance and longevity.

## Description

Shop MCWlaser 3PCS 20mm CO2 Laser Mirrors Si Reflective Lens Gold-Plated Silicon for CO2 Laser Engraving Cutting Machine. Free delivery on eligible orders of £20 or more.

## Features

- 〖Silicon Laser Mirror Size〗Material: Gold-Plated Silicon. Diameter: 20mm/0.79", Thickness: 3mm/0.12", Shape: plane. Transmittance (Reflectivity): >99,2%.
- 〖Excellent Material & Exquisite Coating Technology〗Gold-Plated silicon, 5 layers Coated gold film, Coating is durable. Superb coating art, precision slicing, polishing and grinding process, high heat resistance, adapt to work under harsh environment, long working life.
- 〖High Reflectivity〗MCWlaser's Si laser reflective lens has super optical performance and fast heat dissipation, high working efficiency, and minimizes light loss caused by reflection. Reflectivity to infrared light is up to 99.8% at 10600nm wavelength, minimizing power loss.
- 〖Widely Application〗Si laser mirror is suitable for 40-400W CO2 laser engraving and cutting machines. It's great replacement laser lens to the K9 mirror for K40 and other 40W engravers.
- 〖Package〗3PCS 20mm CO2 laser mirrors kit. Single piece independent packaging, Adopt closed vacuum packaging to prevent oxidation and corrosion.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B079FZQPCT |
| Best Sellers Rank | 78,360 in DIY & Tools ( See Top 100 in DIY & Tools ) 55 in Engraving Tools |
| Brand | MCWlaser |
| Colour | Gray |
| Country of Origin | China |
| Customer Reviews | 4.8 4.8 out of 5 stars (432) |
| Item Dimensions L x W | 20L x 20W millimetres |
| Manufacturer | Shanghai Top Nine Industrial Co.,Ltd |
| Material | Silicon |
| Model Number | LM1-SI-20x3 |
| Number of Items | 3 |
| Operation Mode | Automatic |
| Part Number | LM-SI20 |
| Style | Laser |
| UPC | 642337974397 |
| Unit Count | 3.0 count |

## Product Details

- **Brand:** MCWlaser
- **Colour:** Gray
- **Material:** Silicon
- **Product dimensions:** 20L x 20W millimetres
- **Style:** Laser

## Images

![Si Laser Mirror - Image 1](https://m.media-amazon.com/images/I/516FbwKSEVL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- MCWlaser 20mm CO2 Laser Mirror Si Reflective Mirrors Lens Gold-Plated Silicon 3PCS CO2 Laser Lens for CO2 Laser Engraving Cutting Machine
- MCWlaser USA CVD II-VI ZnSe 12mm Laser Focus Lens Focal Length 50.8mm/ 2 inch CO2 Laser Lens for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W

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**Shop now:** [https://www.desertcart.gr/products/81253389-si-laser-mirror](https://www.desertcart.gr/products/81253389-si-laser-mirror)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-10-09*